22 research outputs found
‘You Can Get It If You Really Want’: Impact Evaluation Experience of the Office of Evaluation and Oversight of the Inter?American Development Bank
STRUCTURE AND VARIATION OF THE Y-CHROMOSOME IN DROSOPHILA ATHABASCA AND RELATED SPECIES.
Abstract not availabl
Divestiture and deregulation of public enterprises: the Mexican case
Includes bibliograph
Surface waves in presented elastic media
Biot (1965) has shown that an otherwise isotopic elastic material may possess an apparent or induced anisotropy if the initial static stress is taken into account. In this paper we examine in detail the propogation of surface waves in prestessed elastic media with incremental elastic coefficients possessing orthotropic symmetry. Three problems have been discussed: Rayleigh waves in a uniform haf-space, Stoneley waves ina half-space lying over another half-space, and love waves in a layer lying over a half-space. Since the method of potentials, used by some earlier investigators, is, in general, not applicable in the case of prestressed media, the problem of Rayleigh and Stoneley waves have been solved by a direct method, without introducing the displacement potentials
Reflection and transmission of P and SV waves at an interface between two prestressed elastic half-spaces
This article does not have an abstract